Add support for EditorConfig plugin

[fpuga]

Not sure if this feature request belongs to this plugin or to the EditorConfig atom plugin, but it will be awesome if the wrap guide will be set to the max_line_length option (defined for each file type) in the .editorconfig settings.

There is an issue about this in editorconfig plugin sindresorhus/atom-editorconfig#190

[amk221]

+1